Reply To: can directory entrants edit their own entries?

@ Lisa

re: first question
If you want the users to maintain their own entry, you need to use Link, not Form. using Link will prevent the possibility of duplicate entry and allow the user to maintain their own entry. Using Link, yes, the user will require a login.

re: login module
I do not have any that I can recommend but any plugin that has a shortcode for a login form or a widget should work just fine.

re: second question
I would not expect that they would need double entries. Parts of the entry such as addresses and phone numbers can be marked as private. When marked as private, those details will only be exposed to users that are logged in if that there user role has been setup to allow the viewing of private details.

Hope that helps!